/*
 * libjingle
 * Copyright 2004--2013, Google Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice,
 *     this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice,
 *     this list of conditions and the following disclaimer in the documentation
 *     and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "talk/examples/chat/textchatreceivetask.h"

#include "talk/xmpp/constants.h"

namespace buzz {

TextChatReceiveTask::TextChatReceiveTask(XmppTaskParentInterface* parent)
  : XmppTask(parent, XmppEngine::HL_TYPE) {
}

TextChatReceiveTask::~TextChatReceiveTask() {
  Stop();
}

bool TextChatReceiveTask::HandleStanza(const XmlElement* stanza) {
  // Make sure that this stanza is a message
  if (stanza->Name() != QN_MESSAGE) {
    return false;
  }

  // see if there is any body
  const XmlElement* message_body = stanza->FirstNamed(QN_BODY);
  if (message_body == NULL) {
    return false;
  }

  // Looks good, so send the message text along.
  SignalTextChatReceived(Jid(stanza->Attr(QN_FROM)), Jid(stanza->Attr(QN_TO)),
                         message_body->BodyText());

  return true;
}

int TextChatReceiveTask::ProcessStart() {
  // not queuing messages, so just block.
  return STATE_BLOCKED;
}

}  // namespace buzz
